--Have you ever been here before? ---Well, I once _________ here for four years. Those days are really unforgettable.
Mr Smith, of the speech, started to read a novel.
All of us still remember the terrible earthquake that Tangshan twenty years ago.
The College Entrance Examination near, so you should be prepared for it.
_____ China’s reform and opening up in late 1978, its quick development has aroused worldwide attention, which has made America anxious about it.
Whenever I met him, _____ was fairly often, I like his sweet and hopeful smile.